Idk actually, try it out if not too expensive and give it a test ride and check up on it after strong torques followed by harsh braking . Try to lock and not lock your back wheel , have your front brake as a safety net
ernieball2221 on
There have been a lot of opinions ever since discs came out for mounting discs on a non disc frame, and it was always said they were a bad idea as the frames were not designed to take the strain. But I’ve never actually seen where a frame has given out because of this, either personally or pictures, if anyone has any pictures I’d love to see them.
[deleted] on
[removed]
Walv1s on
What is a ‘bad idea’ to you?
Mounting disc brakes on a frame not designed for disk brakes will always be a questionable thing to do. While it might work, you’ll never know if it’s safe until it’s too late. I personally would not risk it, but feel free to be the guinea pig!
arse_biscuits on
I had an A2Z one back in the day on an old ali MTB. Seemed to work ok. Didn’t have any performance issues but only used it for a short while as you had to remove it to get the wheel off (due to the geometry of that particular frame), which was a PITA if you had to fix a puncture on a ride.
If steel, or even an ali frame why not give it a shot. On a carbon frame though, no. I’m no expert but carbon is generally layered to be directionally strong iirc, so I wouldn’t feel safe putting strain on it outside of its design.
MrKnopfler on
I have thought about this a lot and Honestly I don’t see how it’s worth it.
Do you really need that braking power on the rear? Doing a hybrid setup with disc on the front and rims on the rear makes way more sense to me than using a sketchy adapter for minimal improvement.
andyinabox on
Think about what could potentially happen in the worst case. It’s not just that you’d lose your rear brake … would a failure mean the disc caliper would fly into the spokes, damaging the wheel? Could that cause the wheel to lock up sending you out of control? Would this cause you to panic and cinch down on the front brake, sending you over the handlebars?
Maybe not, I’ve never tried it. A case of “fuck around and find out” where finding out could mean serious injury or even death. It’s your neck, what’s it worth to you?
l008com on
Seems awfully dangerous to me. One day under hard braking, its probably just going to snap.
Hexbelt_ on
I would try compressionless housing before this
Nervous-Rush-4465 on
I think the fasteners would be the weak link, followed by the adapter itself. Something will fail catastrophically.
PivoWar42 on
On both mechanical disc and 2 types of rim brakes on 3 of my bikes i’m able to lock a rear wheel easily and then i’m just skidding past that point. As 70% of braking happens on the front since most of your weight goes there doing braking i do not see a reason make rear brakes stronger. If anything i’d make sure the front brake works properly and i’d suggest to think of a rear brake as supplementary.
11 Comments
Idk actually, try it out if not too expensive and give it a test ride and check up on it after strong torques followed by harsh braking . Try to lock and not lock your back wheel , have your front brake as a safety net
There have been a lot of opinions ever since discs came out for mounting discs on a non disc frame, and it was always said they were a bad idea as the frames were not designed to take the strain. But I’ve never actually seen where a frame has given out because of this, either personally or pictures, if anyone has any pictures I’d love to see them.
[removed]
What is a ‘bad idea’ to you?
Mounting disc brakes on a frame not designed for disk brakes will always be a questionable thing to do. While it might work, you’ll never know if it’s safe until it’s too late. I personally would not risk it, but feel free to be the guinea pig!
I had an A2Z one back in the day on an old ali MTB. Seemed to work ok. Didn’t have any performance issues but only used it for a short while as you had to remove it to get the wheel off (due to the geometry of that particular frame), which was a PITA if you had to fix a puncture on a ride.
If steel, or even an ali frame why not give it a shot. On a carbon frame though, no. I’m no expert but carbon is generally layered to be directionally strong iirc, so I wouldn’t feel safe putting strain on it outside of its design.
I have thought about this a lot and Honestly I don’t see how it’s worth it.
Do you really need that braking power on the rear? Doing a hybrid setup with disc on the front and rims on the rear makes way more sense to me than using a sketchy adapter for minimal improvement.
Think about what could potentially happen in the worst case. It’s not just that you’d lose your rear brake … would a failure mean the disc caliper would fly into the spokes, damaging the wheel? Could that cause the wheel to lock up sending you out of control? Would this cause you to panic and cinch down on the front brake, sending you over the handlebars?
Maybe not, I’ve never tried it. A case of “fuck around and find out” where finding out could mean serious injury or even death. It’s your neck, what’s it worth to you?
Seems awfully dangerous to me. One day under hard braking, its probably just going to snap.
I would try compressionless housing before this
I think the fasteners would be the weak link, followed by the adapter itself. Something will fail catastrophically.
On both mechanical disc and 2 types of rim brakes on 3 of my bikes i’m able to lock a rear wheel easily and then i’m just skidding past that point. As 70% of braking happens on the front since most of your weight goes there doing braking i do not see a reason make rear brakes stronger. If anything i’d make sure the front brake works properly and i’d suggest to think of a rear brake as supplementary.